Stepper Motor with Labview?

[prash001]

Hi everyone,

I am new to LabVIEW.

I am planning to develop a project to control a stepper motor using an NI-DAQ, and Labview, but I am not sure how practical this approach is. My goal is to create a single interface that performs both data acquisition and stepper motor control at the same time. Is this feasible using only a DAQ and the necessary motor drivers, without needing to use a microcontroller?

[Ahmed99]

Yes its feasible no problem in that , good luck

[Bob_Schor]

This is easily done with NI's multifunction USB DAQ devices.  Stepper Motors are driven by a series of digital pulse trains that govern both the velocity (which is a "signed" quantity, corresponding to CW vs CCW rotation) and distance (the difference between the starting position, say in degrees, and ending position).  Check out the newly-released NI mioDAQ devices that include 16 Digital I/O ports that can be configured as Counter/Timers, which is just the function that you want to control your Stepper Motor.

How familiar are you with Stepper Motors?  Are you aware of the "other pieces" you may want to consider?  How big a power supply does your Motor require?  Is there a "chip" (such as the A4988 -- please look this up!) that will provide an easy interface between the digital pulse signals driving the motor and the analog power supply powering the motor's coils? 

Bob Schor

[GerdW]

Hi,

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@prash001 wrote:

Hi everyone,

I am new to LabVIEW.

I am planning to develop a project to control a stepper motor using an NI-DAQ, and Labview, but I am not sure how practical this approach is. My goal is to create a single interface that performs both data acquisition and stepper motor control at the same time. Is this feasible using only a DAQ and the necessary motor drivers, without needing to use a microcontroller?

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